1. The shares subject to this option vest in four equal quarterly installments at a rate of 1/4 of the total number of shares every three months, with the first 1/4 vesting on the date that is three months following June 7, 2018 and an additional 1/4 every three months thereafter, subject in each case to the continued service of the Reporting Person as a non-employee director as of such vesting date.

Remarks:

/s/ Matt Bartholomae, Attorney-in-Fact

06/11/2018

** Signature of Reporting Person

Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person,
see
Instruction
4
(b)(v).